Sennheiser IE 900 Earphone, flagship in ear headphone. One of the best in ear headphone available, 5 star review from Whathifi, recommended by Headfonia, HiFi+ and Wired.
Sennheiser IE 900 provides awesome detail level, is very balanced, has outstanding deep bass response and like Sennehiser's flagship headphone, provides an excellent soundstage, more open than most earphones. Sennheiser uses a machined aluminum housing (with very cool machining grooves on the outside surface) to sculpt the interior of the housing, a tuning system they call X3R.
This perfectly maximizes the performance of the single 7mm driver. The accessory package is generous. Sennheiser includes three 1.25m high quality cables with mmcx connectors: 3.5mm plug and two balanced cables, 2.5mm & 4.4mm.
Sennheiser: '"With the IE900 our engineering team managed to bring the potential of our 7 mm transducers to their full potential. The IE 900’s affinity for detail is striking. The clean and balanced sound signature stays honest to the original recording—even on tracks whose secrets you thought you had exhausted. The IE 900 gives you the best frequency extension and lowest possible distortion within the in-ear category."
Jermo Koehnke, Product Manager, Sennheiser
Sennheiser IE900 Specs:
Impedance 18 ohm
Sensitivity 123 dB
Frequency Response 5 - 48,000 Hz
Weight 4g each
Ear tips: 3 pr silicone, 3 pr foam
Carry case w/serial #, cleaning tool, cloth, cable clip